| Brand | Longines |
| Caliber Number | L561 (see variations below) |
| In-House? | No |
| Base Movement | ETA 2671 |
| Movement Type | Automatic, self-winding mechanical |
| Lignes | 7.75”’ |
| Diameter | 17.2mm |
| Height | 4.8mm |
| Jewel Count | 17 or 25 |
| Beat Rate | 28,800 vph, 4Hz |
| Lift Angle | Unconfirmed |
| Power Reserve | ~38 hours |
| Rotor Style | Ball-bearing |
| Hand-Windable? | Yes |
| Anti-Shock Device | Kif |
| Hand Count | 3 |
| Functions | Central hours; central minutes; central sweeping seconds; date at 3:00 |
| Hacking Seconds? | Yes |
| Country of Manufacture | Switzerland, Swiss made |
| Known Models | (Add your watch to the comments below…) |
The Longines caliber L561.1 is a Swiss made ladies size 3-hander automatic movement with a date.
Known Variations:
- L561.1 – 25 jewels (vintage)
- L561.2 – 17 jewels (vintage)
- L561.4 – 25 jewels (modern)
Additional Resources:
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